Composite sound-insulation material and preparation method thereof

A technology of sound insulation materials and materials, applied in the field of sound insulation materials, can solve the problems of limited application scope, high cost, bulky and thick, etc.

Active Publication Date: 2016-03-30
KUNMING IRON & STEEL HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to effectively block noise, most traditional sound insulation materials are solved by increasing surface density and

Method used

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  • Composite sound-insulation material and preparation method thereof
  • Composite sound-insulation material and preparation method thereof
  • Composite sound-insulation material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0038] like figure 1 Shown: the preparation method of the composite sound insulation material comprises the following steps:

[0039] (1) Metering and preparation: Weigh each component according to the mass fraction, stir the recovered steel slag powder and coupling agent in a high-speed mixer for 5-10 minutes, and control the stirring temperature at 90-110 °C to complete the surface treatment of the steel slag powder. activation treatment;

[0040] (2) Sequential feeding and high-speed dispersion: firstly add recycled polyethylene, linear low-density polyethylene and polymer compatibilizer to the mixed materials in step (1), stir at high speed for 3-5 minutes, and control the stirring temperature at 70-80 ℃; then add diluent and antioxidant, stir at high speed for 3 to 5 minutes, and control the stirring temperature at 70 to 90 °C;

[0041] (3) Banburying and plasticizing: add the materials mixed in step (2) into the Banbury mixer and knead for 15-20min, the banburying temp...

Example Embodiment

[0051] Example 1:

[0052] The ingredients are prepared according to Table 1.

[0053] Table 1 The mass fraction of each component

[0054]

[0055] The preparation steps are as follows:

[0056] (1) Stir 75% steel slag powder and 1% silane coupling agent in a high-speed mixer for 10 minutes, and control the stirring temperature at 110 °C to complete the activation treatment of the surface of the steel slag powder.

[0057] (2) Put 15% recycled polyethylene, 5% linear low density polyethylene and 2.5% maleic anhydride grafted polyethylene into the mixed materials in step (1) and stir at high speed for 5 minutes, and the stirring temperature is controlled at 80 °C; then Add 1% chlorinated paraffin 42, 0.3% antioxidant 1010 and 0.2% antioxidant 168, stir at high speed for 5 min, and control the stirring temperature at 90 °C.

[0058] (3) Add the materials mixed in step (2) into the internal mixer and knead for 20 minutes, and the temperature of each section of the internal m...

Example Embodiment

[0063] Example 2

[0064] The ingredients are prepared according to Table 3.

[0065] Table 3 The mass fraction of each component

[0066]

[0067] The preparation steps are as follows:

[0068] (1) 65% steel slag powder and 1.2% titanate coupling agent were stirred in a high-speed mixer for 8 minutes, and the stirring temperature was controlled at 100 °C to complete the activation treatment of the surface of the steel slag powder.

[0069] (2) Put 18% recycled polyethylene, 8% linear low density polyethylene and 5% maleic anhydride grafted ethylene-vinyl acetate copolymer into the mixed materials in step (1) and stir at high speed for 4 minutes, and the stirring temperature is controlled at 75°C; then add 2% chlorinated paraffin 52, 0.5% antioxidant 1010 and 0.3% antioxidant 168, stir at high speed for 4 min, and control the stirring temperature at 80°C.

[0070] (3) Add the mixed materials in step (2) into the internal mixer and knead for 18 minutes. The temperature of...

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Abstract

The invention discloses a composite sound-insulation material and a preparation method thereof. The composite sound-insulation material is composed of the following components in percentage by mass: 65-75% of reclaimed steel slag powder, 10-20% of reclaimed polyethylene, 5-10% of linear low-density polyethylene, 2.5-5% of high-polymer compatilizer, 1-2% of diluter, 1-2% of coupling agent and 0.5-1% of antioxidant. The preparation method comprises the following steps: metering and preparing materials, sequentially adding the materials, dispersing at high speed, banburying, plastifying, extruding, calendering and the like. The steel scrap slag and waste plastic are recycled, thereby implementing reutilization of the waste resources. The composite sound-insulation material has the advantages of low cost, high constructability and the like, is easy for secondary processing and applicable to sound insulation treatment of irregular objects.

Description

technical field [0001] The invention belongs to the technical field of sound insulation materials, and in particular relates to a vinyl sound insulation composite material prepared by filling with recycled steel slag powder and a preparation method thereof. Background technique [0002] With the development and utilization of the natural environment by people, there are more or less shortages of various resources on the earth. The traditional way of relying on resource consumption to achieve economic development will become difficult in the future. At this time, turning waste into resources again to reduce the amount of final disposal, that is, what we usually call waste recycling and comprehensive utilization of waste, can also be called "recycling", and has become one of the hotspots of people's research. one. [0003] Steel slag is a kind of industrial waste slag produced during steelmaking, and its quantity is generally 10% to 20% of crude steel output, and the amount ...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/08C08L51/06C08K11/00
CPCC08K2201/003C08L23/06C08L23/0815C08L2201/02C08L2201/08C08L2205/035C08L2207/20C08L51/06C08K11/005
Inventor 刘瑞铭严杨刘畅赵华玲
Owner KUNMING IRON & STEEL HLDG CO LTD
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